Answer:
Each of her parents must have one recessive gene for blond hair color
Explanation:
- Blond is a recessive trait
- Since Silvia is blond this means she has both copies of the recessive gene for hair color
- Therefore, both her parents have a recessive gene for blond hair and passed it down to her.
- The parents don't have blond hair because their dominant gene for browns masks the recessive gene for blond.
 
        
             
        
        
        
Answer:
Blank 1: Depression, anxiety, or both
Blank 2: Covered or paired
 
        
                    
             
        
        
        
Answer:
How will the changes to the geosphere affect the atmosphere hydrosphere and biosphere?
 Hydrosphere causes erosion of geosphere through running water and precipitation. … Atmosphere gets water vapor from hydrosphere. Geosphere creates, destroys and keeps various biosphere places safe
Explanation:
 
        
                    
             
        
        
        
<span>the portion of an antigen that binds covalently to an antibody</span>